Modified Signals for Supersymmetry in the NMSSM with a Singlino-like LSP

Abstract

In the framework of the NMSSM with a singlino-like LSP, we study quantitatively the impact of the additional bino -> singlino cascade on the efficiencies in several search channels for supersymmetry of the ATLAS and CMS collaborations. Compared to the MSSM, the additional cascade reduces the missing transverse energy, but leads to additional jets or leptons. For the NMSSM benchmark lines which generalize cMSSM benchmark points, the efficiencies in the most relevant 2/3 jet + missing energy search channels can drop by factors ~1/3 to ~1/7, and can reduce the present lower bounds on M_{1/2} by as much as ~0.9 - 0.75 in the NMSSM for large bino-singlino mass differences. The larger efficiencies in multijet or multilepton search channels are not strong enough to affect this conclusion. In the fully constrained cNMSSM, sparticle decay cascades via the lightest stau can lead to signal cross sections in multilepton and 2tau search channels which are potentially visible at the LHC with 7 TeV center of mass energy.

24 pages, 9 Figures, misprint in Table 1 correcred

References in corpus (16)

• PYTHIA 6.4 Physics and Manual
• Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions
• Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy
• QCD radiation in the production of heavy colored particles at the LHC
• NMSPEC: A Fortran code for the sparticle and Higgs masses in the NMSSM with GUT scale boundary conditions
• Benchmark Models, Planes, Lines and Points for Future SUSY Searches at the LHC
• Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using sqrt(s)=7 TeV pp collisions with the ATLAS detector
• Interpreting LHC SUSY searches in the phenomenological MSSM
• Implications of LHC Searches on SUSY Particle Spectra: The pMSSM Parameter Space with Neutralino Dark Matter
• Higgs Bosons in the Next-to-Minimal Supersymmetric Standard Model at the LHC
• Phenomenology of the constrained NMSSM
• The constrained next-to-minimal supersymmetric standard model
• Light NMSSM Higgs bosons in SUSY cascade decays at the LHC
• Interpreting a 1 fb^-1 ATLAS Search in the Minimal Anomaly Mediated Supersymmetry Breaking Model
• NMSSM in disguise: discovering singlino dark matter with soft leptons at the LHC
• Discovering the constrained NMSSM with tau leptons at the LHC

Cited by in corpus (36)

• Physics at the e+ e- Linear Collider
• The 125 GeV Higgs in the NMSSM in light of LHC results and astrophysics constraints
• NMSSM with a singlino LSP: possible challenges for searches for supersymmetry at the LHC
• SUSY induced top quark FCNC decay $t\to ch$ after Run I of LHC
• Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario
• A light NMSSM pseudoscalar Higgs boson at the LHC redux
• Singlet-doublet Higgs mixing and its implications on the Higgs mass in the PQ-NMSSM
• The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck
• The higgsino-singlino sector of the NMSSM: Combined constraints from dark matter and the LHC
• Present Status and Future Tests of the Higgsino-Singlino Sector in the NMSSM
• Current Status of Natural NMSSM in Light of LHC 13TeV Data and XENON-1T Results
• Suppressing the Scattering of WIMP DM with Nucleons in Supersymmetric Theories
• Excess Higgs Production in Neutralino Decays
• Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
• Detection prospects of light NMSSM Higgs pseudoscalar via cascades of heavier scalars from vector boson fusion and Higgs-strahlung
• Peccei-Quinn NMSSM in the light of 125 GeV Higgs
• Singlino-dominated dark matter in $Z_3$-NMSSM
• Status and prospects of the nMSSM after LHC Run-1
• Singlino-dominated dark matter in general NMSSM
• LHC constraints on M_1/2 and m_0 in the semi-constrained NMSSM
• Light neutral CP-even Higgs boson within Next-to-Minimal Supersymmetric Standard model (NMSSM) at the Large Hadron electron Collider (LHeC)
• Probing the NMSSM via Higgs boson signatures from stop cascade decays at the LHC
• Two Light Stops in the NMSSM and the LHC
• A relatively light, highly bino-like dark matter in the $Z_3$-symmetric NMSSM and recent LHC searches
• A Novel Scenario in the Semi-constrained NMSSM
• Light Sparticles from a Light Singlet in Gauge Mediation
• Supersymmetry in the shadow of photini
• Excessive Higgs pair production with little MET from squarks and gluinos in the NMSSM
• Neutrino Mass from a d=7 Effective Operator in a SUSY-GUT Framework
• Revisiting singlino dark matter of the natural $Z_3$-symmetric NMSSM in the light of LHC
• Dominant production of heavier Higgs bosons through vector boson fusion in NMSSM
• Sbottoms of Natural NMSSM at the LHC
• Dark Matter in the CP-violating NMSSM
• Making The Most Of MET: Mass Reconstruction From Collimated Decays
• Status of ${\mathbb{Z}}_3$-NMSSM featuring a light bino-dominated LSP and a light singlet-like scalar under the LZ Experiment
• Shedding Light on Dark Matter at the LHC with Machine Learning